Improvement ih windmills



2Sheets--Sheet'l"l T. KLLUGG.

lWind Mill.

N0. l-H. Patentedluly 27,1875.

WITJV'ESSES INVENTOR By MW,

Ettornep/.S

N PETERS, PHDTO-LITHOGRAPHER. WASHINGTON. A1Cy UMD IMPROVEMENT INWINDNIILLS.

Specification forming part of Letters Patent No.166,0l l. dated uly 27,11875;' application filed June 1, 1875.

top view of the lower half of the box in which the shaft turns. Fig. 4is a transverse section of said box. Fig. 5 is a plan of the mechanism.Fig. 6 is a section on line x w of Fig. l. Fig. 7 is a plan of thefriction-ring.

and rollers.

The same letter indicates the same part Wherever it occurs.

A is the inverted frustum of a cone, of castiron, with the necessary andproper posts and supports for the frame or tower. At the top is aflange, f, cast as a part of it. 0n this ange rests a ring, B, withfriction-rollers i' r. Within this frustum A is a second frustum of acone, inverted also, of cast-iron, B, and moving' freely Within theirst. On the top of this there is also a flange, g, cast with thefrustnm, which rests on the ring R, with friction-rollers, abovementioned, and moving or turning on the same. This frustumis longer thanthe first. Above the flange on this second frustum B extends acylindrical collar, E, also cast with the rest, of the requisite width,cut away partially on one side, to allow the play of the shaft-arm D. Tothe side of this is bolted or fastened the vane V. The lower end of thisfrustum B is made cylindrical. Within this cylindricalpart, and casttherewith, are raised spiral threads t. Within this frustum B is a thirdfrustum of a cone, inverted as the other two, C, and moving freelywithin it, also cylindrical at the lower part, which fits Within thecylindrical part of the frustum B. This third frustum of a cone, C, isalso cast-iron. On the outside'of the cylindrical part of this thirdfrustum C are raised spiral threads u, cast thereon as a part thereof,fitting and moving on and over those within the cylindrical part ot' thefrustum B. At the top of this third frustum C, and cast thereon, is acylindrical collar, F, similar to that on the friustum B, andiittingclosely and moving freely within the same. To this side is cast theshaft-arm D. This is not on a line with the vane V, so

that when allv the different parts and frustums are put together theface of the wind- Wheel is never at right angles with the line of thevane. When the wind blows with greater force than is necessary to do thework it turns the face of the wind-wheel nearer to a line parallel withthe vane, and turning the frustum O on the spiral threads within theconcentric cylinders raises the same, compensating the greater force bythe greater resistance, and preventing injury to the machinery, andrendering stoppage in high winds unnecessary. The too great force oft-he wind is also avoided, and graduated to the necessary degree by theturning of the frustum C, so that the wheel receives less force or powerof the wind. By this arrangement it is selfadjusting at all times to theforce and varying velocity of the wind. The arrangement permits of therevolution of the frustum O so that the4 face of the Wind-wheel shall beon a line parallel to the line of the vane. The collar on the frustum Cis cut away at that part moving near the vane, so as to form a shoulder,and as the angle made by the face of the wind-wheel and the line of thevane becomes more acute, this shoulder is brought against a flat spring,S, extending along the side of the vane, which has a tendency to returnthe frustum C and the wheel to their former positions when the forceofthe wind and gusts abates. The spring also acts as a regulator. In thebottom ofthe Babbitt boxes, in which the shaft turns, are holes or slotsa, connecting with a reservoir, o, beneath, stuffed with suitablepacking, for the purpose of oiling the shaft and preventing waste.Attached to the top box of the wheel-shaft is a conical cap, K, coveringand protecting the openings in the frustums and the interior partsthereof from sleet, snow, or ice. The windmill is thrown out of gear bymeans of an inflexible lever, L, attached to the side of the wheelarm,and at right angles thereto on the side Enron.

thereof', that the angle made with the line of the vane is acute. To thefarther end ofthe lever is attached a chain, H, passing' over pulleys PP on the vane and top ot' the frustum B, and thence passing down throughthe center of the openings in the i'rustums, with swivels andconnections.

What I claim isl. In combination, the concentric cylindrical parts atthe lower ends of the two frustunis of cones B and C, with spiralsitting and workin g together, substantially as and for the purpose setforth.

2. The combination of thc cylindrical collars E F on the two conicfrustrurns B C, each collar having a portion of one side eut away on anincline, in the manner and for the purpose described.

3. 'Ihc combination of the two concentric frustulns B C, inverted withina third external frustum, A, which serves as a jacket to inclose them,and as a frame for the attachment ofthe machine to the lower posts ofthe mill, all constructed and operating in The manner specified.

4. In combination with the collars E F, constructed as described, thevane V, arm L, shaft D, chain H, and pulleys P P', alll arranged andoperating in the manner and for the purpose set forth.

5. In combination with the vane V, the spring S, operating as described,to counteract the forces drawing the vane and shaft out of line, andthus assist in regulating the action of the main shaft.

TIMOTHY KELLOGG. Witnesses:

M. H. BEACH, `LOUIS G. HURD.

